/* ════════════════════════════════════════════════════════
   Code for Non-Coders — JavaScript & TypeScript editorial page
   Same structural rhythm as /course/claude-code-deep-dive,
   rendered in a paper-white → pale-blue palette with deep
   TypeScript blue (#3178C6) as the ambient accent.
   ════════════════════════════════════════════════════════ */

.cnc-page {
  --cnc-bg-0: #F5F9FF;
  --cnc-bg-1: #EEF4FC;
  --cnc-bg-2: #E4EDF8;
  --cnc-bg-3: #DCE8F5;

  --cnc-ts: #3178C6;
  --cnc-ts-deep: #235A97;
  --cnc-ts-dim:   rgba(49, 120, 198, 0.22);
  --cnc-ts-soft:  rgba(49, 120, 198, 0.14);
  --cnc-ts-faint: rgba(49, 120, 198, 0.08);
  --cnc-ts-wash:  rgba(49, 120, 198, 0.04);

  --cnc-ink-100: #0A1929;
  --cnc-ink-80:  rgba(10, 25, 41, 0.82);
  --cnc-ink-60:  rgba(10, 25, 41, 0.60);
  --cnc-ink-45:  rgba(10, 25, 41, 0.45);
  --cnc-ink-30:  rgba(10, 25, 41, 0.28);
  --cnc-line:    rgba(49, 120, 198, 0.14);
  --cnc-line-soft: rgba(49, 120, 198, 0.08);
  --cnc-surface: rgba(255, 255, 255, 0.55);
  --cnc-surface-hover: rgba(255, 255, 255, 0.78);

  direction: rtl;
  color: var(--cnc-ink-80);
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(49, 120, 198, 0.09) 0%, transparent 60%),
    linear-gradient(180deg, var(--cnc-bg-0) 0%, var(--cnc-bg-1) 30%, var(--cnc-bg-2) 70%, var(--cnc-bg-3) 100%);
  font-family: var(--font-body);
  overflow: hidden; /* clip ambient glow */
}

.cnc-container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}

/* ── Hero ──────────────────────────────────────────────── */

.cnc-hero {
  position: relative;
  padding: 120px 0 110px;
  text-align: center;
  overflow: hidden;
}

.cnc-hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 780px;
  background:
    radial-gradient(ellipse, rgba(49, 120, 198, 0.18) 0%, rgba(100, 98, 234, 0.08) 38%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(8px);
}

.cnc-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--cnc-ts-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--cnc-ts-faint) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 10%, transparent 75%);
  opacity: 0.45;
  pointer-events: none;
  z-index: 1;
}

.cnc-badge {
  display: inline-block;
  padding: 7px 18px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cnc-ts-deep);
  background: var(--cnc-ts-faint);
  border: 1px solid var(--cnc-ts-dim);
  border-radius: var(--radius-full);
  margin-bottom: 40px;
  font-family: var(--font-body);
}

.cnc-lockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 44px;
  direction: ltr;
}

.cnc-lockup-logo10x {
  height: 52px;
}

.cnc-lockup-sep {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--cnc-ink-45);
  font-family: var(--font-body);
  margin: 14px 0 2px;
}

.cnc-lockup-marks {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  margin-top: 6px;
}

.cnc-lockup-mark {
  width: 82px;
  height: 82px;
  border-radius: 18px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 10px 26px rgba(0, 60, 130, 0.14);
  transition: transform 0.3s ease;
}

.cnc-lockup-mark:hover {
  transform: translateY(-3px);
}

.cnc-headline {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--cnc-ink-100);
  margin-bottom: 28px;
}

.cnc-sub {
  font-size: 19px;
  line-height: 1.65;
  color: var(--cnc-ink-60);
  max-width: 680px;
  margin: 0 auto 44px;
  font-weight: 400;
  font-family: var(--font-body);
}

.cnc-sub strong {
  color: var(--cnc-ink-100);
  font-weight: 600;
}

.cnc-hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid var(--cnc-line);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--cnc-ink-60);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
}

.cnc-meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cnc-ts);
  box-shadow: 0 0 10px rgba(49, 120, 198, 0.55);
}

.cnc-hero-meta-logo {
  height: 0.95em !important;
  display: inline-block;
  vertical-align: middle;
  top: 0 !important;
}

/* ── Pillars ──────────────────────────────────────────── */

.cnc-pillars-wrap {
  position: relative;
  padding: 32px 0 80px;
  border-top: 1px solid var(--cnc-line-soft);
}

.cnc-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 48px;
}

.cnc-pillar {
  padding: 36px 32px 34px;
  background: var(--cnc-surface);
  border: 1px solid var(--cnc-line);
  border-radius: var(--radius-lg);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.cnc-pillar:hover {
  background: var(--cnc-surface-hover);
  border-color: var(--cnc-ts-dim);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0, 60, 130, 0.08);
}

.cnc-pillar-kicker {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cnc-ts-deep);
  margin-bottom: 18px;
}

.cnc-pillar-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--cnc-ink-100);
  margin-bottom: 12px;
  line-height: 1.3;
}

.cnc-pillar-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--cnc-ink-60);
  margin: 0;
}

/* ── Syllabus ─────────────────────────────────────────── */

.cnc-syllabus {
  position: relative;
  padding: 100px 0 80px;
}

.cnc-eyebrow {
  font-family: var(--font-body);
  font-size: 16.8px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cnc-ts-deep);
  margin-bottom: 18px;
  text-align: center;
}

.cnc-section-title {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--cnc-ink-100);
  text-align: center;
  margin-bottom: 22px;
}

.cnc-section-sub {
  font-size: 17px;
  line-height: 1.75;
  color: var(--cnc-ink-60);
  max-width: 680px;
  margin: 0 auto 72px;
  text-align: center;
}

.cnc-chapters {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--cnc-line);
  border: 1px solid var(--cnc-line);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.cnc-chapter {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0.55) 100%);
  padding: 40px 36px 36px;
  margin: 0;
  position: relative;
  transition: background 0.3s ease;
}

.cnc-chapter:hover {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(49, 120, 198, 0.05) 100%);
}

.cnc-chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--cnc-line);
}

.cnc-chapter-num {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 200;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--cnc-ts);
  opacity: 0.9;
  min-width: 48px;
}

.cnc-chapter-titles {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.cnc-chapter-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cnc-ts-deep);
  opacity: 0.8;
  font-family: var(--font-body);
}

.cnc-chapter-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--cnc-ink-100);
}

.cnc-chapter-subjects {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cnc-chapter-subjects li {
  position: relative;
  padding-right: 18px;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--cnc-ink-80);
  margin: 0;
}

.cnc-chapter-subjects li::before {
  content: '';
  position: absolute;
  right: 0;
  top: 0.7em;
  width: 6px;
  height: 1px;
  background: var(--cnc-ts);
  opacity: 0.75;
}

/* ── Stats ────────────────────────────────────────────── */

.cnc-stats-wrap {
  padding: 30px 0 100px;
}

.cnc-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  padding: 48px 32px;
  border-top: 1px solid var(--cnc-line);
  border-bottom: 1px solid var(--cnc-line);
}

.cnc-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  min-width: 150px;
}

.cnc-stat-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(180deg, var(--cnc-ts-deep) 0%, var(--cnc-ts) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.cnc-stat-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--cnc-ink-45);
  font-family: var(--font-body);
  text-transform: uppercase;
}

.cnc-stat-div {
  width: 1px;
  height: 44px;
  background: var(--cnc-line);
}

/* ── Prev / next module nav ─────────────────────────── */

.cnc-module-nav-wrap {
  position: relative;
  padding: 24px 0 8px;
  border-top: 1px solid var(--cnc-line-soft);
}

.cnc-module-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.cnc-module-nav-spacer {
  display: block;
}

.cnc-module-nav-link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--cnc-line);
  background: var(--cnc-surface);
  text-decoration: none;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease,
    box-shadow 0.25s ease;
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
}

.cnc-module-nav-link:hover {
  border-color: var(--cnc-ts-dim);
  background: var(--cnc-surface-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(0, 60, 130, 0.10);
}

.cnc-module-nav-direction {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cnc-ink-45);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}

.cnc-module-nav-direction i {
  font-size: 11px;
  color: var(--cnc-ts);
  opacity: 0.9;
}

.cnc-module-nav-link:hover .cnc-module-nav-direction {
  color: var(--cnc-ink-60);
}

.cnc-module-nav-link:hover .cnc-module-nav-direction i {
  opacity: 1;
}

.cnc-module-nav-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--cnc-ink-100);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.cnc-module-nav-prev {
  align-items: flex-end;
  text-align: end;
}

.cnc-module-nav-next {
  align-items: flex-start;
  text-align: start;
}

/* ── CTA ──────────────────────────────────────────────── */

.cnc-cta {
  position: relative;
  padding: 90px 0 130px;
  text-align: center;
}

.cnc-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(49, 120, 198, 0.10) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.cnc-cta-title {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--cnc-ink-100);
  margin-bottom: 24px;
}

.cnc-cta-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--cnc-ink-60);
  max-width: 620px;
  margin: 0 auto 44px;
}

.cnc-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.cnc-cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 42px;
  background: var(--accent-warm);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-family: var(--font-body);
  letter-spacing: 0.01em;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 18px rgba(196, 85, 26, 0.28);
}

.cnc-cta-primary:hover {
  background: var(--accent-warm-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 26px rgba(196, 85, 26, 0.4);
}

.cnc-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cnc-ts-deep);
  text-decoration: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  letter-spacing: 0.01em;
  font-family: var(--font-body);
}

.cnc-cta-secondary:hover {
  opacity: 0.75;
  transform: translateX(-3px);
}

.cnc-cta-secondary svg {
  flex-shrink: 0;
}

/* ── Tablet ───────────────────────────────────────────── */

@media (max-width: 1024px) {
  .cnc-container { padding: 0 28px; }

  .cnc-hero { padding: 88px 0 80px; }
  .cnc-lockup-logo10x { height: 44px; }
  .cnc-lockup-mark { width: 64px; height: 64px; border-radius: 14px; }
  .cnc-headline { font-size: 44px; }
  .cnc-sub { font-size: 18px; }

  .cnc-pillars { grid-template-columns: 1fr; gap: 14px; padding-top: 32px; }
  .cnc-pillar { padding: 30px 28px 28px; }

  .cnc-syllabus { padding: 80px 0 60px; }
  .cnc-section-title { font-size: 34px; }

  .cnc-chapters { grid-template-columns: 1fr; }
  .cnc-chapter { padding: 32px 28px; }

  .cnc-stats { gap: 32px; padding: 40px 24px; flex-wrap: wrap; }
  .cnc-stat-num { font-size: 42px; }

  .cnc-cta-title { font-size: 32px; }
}

/* ── Phone ────────────────────────────────────────────── */

@media (max-width: 767px) {
  .cnc-container { padding: 0 22px; }

  .cnc-hero { padding: 56px 0 64px; }
  .cnc-badge { margin-bottom: 28px; }
  .cnc-lockup { gap: 10px; margin-bottom: 32px; }
  .cnc-lockup-logo10x { height: 36px; }
  .cnc-lockup-marks { gap: 14px; margin-top: 4px; }
  .cnc-lockup-mark { width: 52px; height: 52px; border-radius: 12px; }
  .cnc-headline { font-size: 32px; letter-spacing: -0.02em; margin-bottom: 20px; }
  .cnc-sub { font-size: 16.5px; margin-bottom: 32px; }
  .cnc-hero-meta { font-size: 12px; padding: 7px 14px; }

  .cnc-pillars-wrap { padding: 24px 0 60px; }
  .cnc-pillars { padding-top: 28px; }
  .cnc-pillar-title { font-size: 20px; }
  .cnc-pillar-desc { font-size: 14.5px; }

  .cnc-syllabus { padding: 64px 0 48px; }
  .cnc-section-title { font-size: 26px; }
  .cnc-section-sub { font-size: 15.5px; margin-bottom: 48px; }

  .cnc-chapter { padding: 28px 22px 26px; }
  .cnc-chapter-head { gap: 14px; padding-bottom: 16px; margin-bottom: 18px; }
  .cnc-chapter-num { font-size: 32px; min-width: 38px; }
  .cnc-chapter-title { font-size: 18px; }
  .cnc-chapter-subjects li { font-size: 14px; }

  .cnc-stats-wrap { padding: 20px 0 64px; }
  .cnc-stats { gap: 24px; padding: 32px 16px; }
  .cnc-stat { min-width: 0; flex: 1; }
  .cnc-stat-num { font-size: 34px; }
  .cnc-stat-label { font-size: 11.5px; }
  .cnc-stat-div { height: 32px; }

  .cnc-module-nav-wrap { padding: 16px 0 0; }
  .cnc-module-nav { grid-template-columns: 1fr; gap: 12px; }
  .cnc-module-nav-link { padding: 18px 20px; }
  .cnc-module-nav-title { font-size: 15.5px; }

  .cnc-cta { padding: 56px 0 88px; }
  .cnc-cta-title { font-size: 26px; }
  .cnc-cta-desc { font-size: 16px; margin-bottom: 32px; }
  .cnc-cta-actions { flex-direction: column; gap: 20px; }
  .cnc-cta-primary { width: 100%; max-width: 320px; }
}